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Now Print perovskite Solar Cells easily and at the cost similar to bringing out a Newspaper!

Researchers of University of Toronto Engineering have found that the solar cells manufactured with perovskite mineral could lead to low-cost solar panels

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Solar panels absorbing sunlight. Pixabay

Toronto, Feb 18, 2017: Researchers have found a novel way to print perovskite solar cells easily and at a cost similar to bringing out a newspaper!

A team, led by Hairen Tan from University of Toronto Engineering found that the solar cells manufactured with perovskite mineral could lead to low-cost, printable solar panels capable of turning nearly any surface into a power generator.

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“Economies of scale have greatly reduced the cost of silicon manufacturing,” Ted Sargent, an expert in emerging solar technologies, said in a university statement.

“Potentially, perovskites and silicon cells can be married to improve efficiency further, but only with advances in low-temperature processes,” added Sargent, who is also the Canada Research Chair in Nanotechnology.

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Perovskite solar cells depend on a layer of tiny crystals — each about 1,000 times smaller than the width of a human hair — made of low-cost, light-sensitive materials.

Because the perovskite raw materials can be mixed into a liquid to form a kind of ‘solar ink’, they could be printed onto glass, plastic or other materials using a simple inkjet printing process.

“The most effective materials for making electron selective layers (ESLs) start as a powder and have to be baked at high temperatures, above 500 degrees Celsius,” said Tan.

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Tan noted that perovskite solar cells using the older, high-temperature method are only marginally better at 22.1 per cent and even the best silicon solar cells can only reach 26.3 per cent.

Tan’s perovskite solar cells were also stable and retained more than 90 per cent of their efficiency even after 500 hours of use. (IANS)

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BSES Launches Pilot Project to Set up Solar Micro Grids in East, Central Delhi

According to a release, similar grids are planned for the south and west Delhi, which are under the jurisdiction of BSES Rajdhani Power Ltd (BRPL)

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solar panels, electricity, bses
The current cost of setting up a rooftop solar system is around Rs 40,000 per kW and around Rs 80,000 per kW for an energy storage system. Pixabay

In a major push to clean energy in the national capital, Delhi distribution company (discom) BSES, here on Tuesday, announced launch of a pilot project to set up solar micro grids in the east and central Delhi under the jurisdiction of BSES Yamuna Power Ltd (BYPL).

According to a release, similar grids are planned for the south and west Delhi, which are under the jurisdiction of BSES Rajdhani Power Ltd (BRPL).

“These micro grids will combine rooftop solar plants with lithium-ion-based (Li Ion) battery energy storage systems. As a technology demonstrator, four such micro grids have been set up at BYPL offices in east Delhi,” the release said.

While the energy generated through rooftop solar plants is being used for catering to the internal power requirements of office loads and to charge batteries, the surplus is fed into the grid, “which has the potential to reduce the electricity bills,” it added.

BSES, electricity, solar panels
Around 1,245 litre of diesel and 0.24 million units of electricity amounting to Rs 20 lakh can be saved on annual basis. Additionally, it can also reduce CO2 of around 205 tonnes. Pixabay

Noting the multiple benefits of such micro grids, the BSES said the initial results of the pilot project at four BYPL locations have been encouraging. The discom has installed rooftop solar plants, varying between 5 kilowatt (kW) and 7 kW and energy battery storage between 7 kilowatt-hour (kWhr) and 10 kWhr.

“They show that over this period only 8 per cent of grid power (net of exports) was used. The balance 92 per cent was generated and met through the solar plant coupled with the energy battery storage,” the release said.

“Apart from this, around 1,245 litre of diesel and 0.24 million units of electricity amounting to Rs 20 lakh can be saved on annual basis. Additionally, it can also reduce CO2 of around 205 tonnes.

“A pan discom (including at consumer location) rollout of 1,000 such solar energy battery storage micro grids has the potential to save around 62 million units of electricity and over 3 lakh litre of diesel amounting to around Rs 41 crore on an annual basis. Moreover, this will lead to CO2 reduction of around 51,000 tonnes,” it added.

BSES, electricity, solar panels
According to a release, similar grids are planned for the south and west Delhi, which are under the jurisdiction of BSES Rajdhani Power Ltd (BRPL). Pixabay

The discom has tied up with the Council on Energy, Environment and Water (CEEW) to gauge and assess the performance of the micro grid pilot project and to popularise the concept.

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Commenting on the development, a BSES spokesperson said: “With an aim to increase the penetration of renewable energy, reduce carbon footprint and to help our consumers reduce electricity bills, the BSES is going higher in the renewable energy value chain.”

The current cost of setting up a rooftop solar system is around Rs 40,000 per kW and around Rs 80,000 per kW for an energy storage system. “This may further go down as the number of consumers increase,” the company said. (IANS)